For the Rockwyrm, Aika had protection against stone, and I'm pretty sure someone had the flame mantle equipped (it was probably Fina because I was trying to give her more defense to compensate for her low level and HP, but it was still really easy for her to get killed if she didn't defend practically every turn, which is my main complaint about that part).
As for Sinistra and Destra:
Unlike the Pyri-amid (Temple of Pyrynn), there's nothing about Daccat's Island that implies a red/purple boss (in fact, the random encounters are blue and green!), so you can't really play the "you weren't strategizing" card here. I admit I haven't purchased armor since Sailor's Island, but that's because there's usually better armor in the dungeons, so I never really had to. In fact, the Maiden's Armor inside Daccat's Island gives Fina her strongest magic defense at this time, but Tundra Blast still takes ~1000 HP from her (~950-980 for everyone else, and Explode isn't much weaker)! In other words, unless I have Fina defend each turn, I risk her getting killed from one Tundra Blast combined with one Explode, even at full HP (and it isn't uncommon for that to happen). What's worse: even if she is
defending, two Death Waltzs in one turn (which happened once each time I played today) will kill her anyway!
And yeah, I'm at level 24. Current max HP:
And yes, my strategy is to focus all my attacks on one (but I don't have Prophecy yet, so my strongest attack is a purple Cutlass Fury) and defend/heal when I'm low on HP.
Now, you may be thinking "just use Sacrum; that heals everyone by 1500 points." However, if they use Explode and Tundra Blast on the same turn (which, as I wrote before, isn't uncommon), that takes away a combined total of ~1900 points when unguarded, so I'd be stuck in a loop until either someone dies or I get lucky
and they just use normal attacks, letting me heal properly.
Another thing they like to do is use Tundra Blast/Explode in combination with Engage, and on the next turn, use Tundra Blast/Explode in combination with Death Waltz (or even Engage and Death Waltz!). If that happens, no matter what I do, someone dies (since I can't have one character heal from the previous attack and
guard from the next one) and the others end up with low health if they don't also die. Plus, although I have a Riselm box and Fina knows Riselm (Vyse and Aika know Risan), I'm never guaranteed a move before the boss, so the game could just decide to kill me before I have a chance to heal or revive anyone. Even though I now know when the bosses will use Death Waltz, I can't really plan around it because their normal magic attacks are just so powerful; no matter what I do, no matter how defensive or offensive my strategy is, they employ one of the above strategies and I get murdered...
But on the other hand, when you're the first person that tells me this, It could be something else.
As a veteran of the SMBX community, I can assure you that most people don't bring up their issues directly to the creators, choosing instead either to keep it to themselves or complain about it elsewhere (like a let's play thread of the episode on a different forum). Plus, this patch is only a few months old; I doubt many other people have played it blind yet. Now it's my turn to ask you:
Who did you get to playtest your patch? Did anyone play it blind, or did they all have prior experience with Skies of Arcadia and have some idea of what to expect? The readme says that this was also meant for people who haven't played the game before, but your response implies that I was supposed to know to defend specifically against red and purple attacks ahead of time.
P.S. I also haven't used any stat-boosting items (partly because the readme said that certain bosses scale, and partly because, again, I never really needed to), though I doubt that would make much difference.
P.P.S. Here's a play-by-play of my last attempt (each sentence is a turn, but moves didn't necessarily happen in the order of the sentence):
Everyone uses Crystales against Sinisra; Sinistra uses Engage and Destra uses Tundra Blast.
Aika uses Sacrum and everyone else guards; Sinistra uses Death Waltz and Destra uses Tundra Blast, killing Aika.
Since Aika is the only one who knows Sacrum, Vyse uses Sacres on himself, Fina uses Riselm on Aika, and Gilder uses a Sacres crystal (since he doesn't even know Sacres at this point) on Fina; Sinistra attacks Gilder, Destra uses Tundra Blast.
Aika uses Sacrum and everyone else guards; Sinistra uses Explode and Destra attacks Gilder but Gilder counters.
Since Vyse is almost at full HP, I take a chance and use Cutlass Fury while Aika uses Sacrum again; Sinistra attacks Aika, but Aika counters, and Destra uses Tundra Blast.
Aika uses Sacrum, Gilder uses a Sacres crystal on Aika, Vyse and Fina guard; Destra uses Tundra Blast, Sinistra attacks Aika.
Aika uses Epsilon Mirror, everyone else uses Crystales against Sinistra; Sinistra attacks Vyse, but Vyse counters, and Destra uses Tundra Blast.
Vyse and Fina defend, Aika uses Sacrum, Gilder uses Crystales against Sinistra (not enough SP for Gunslinger, obv.); Destra attacks Aika, Aika counters, Sinistra attacks Gilder. I'd also like to interject and say that I've been getting lucky with this attempt.
Vyse uses Crystales, Gilder uses Gunslinger, Aika and Fina defend; Sinistra uses Explode, Destra attacks Vyse.
Aika uses Sacrum, everyone else defends; Sinistra uses Engage, Destra uses Tundra Blast.
Trying to keep Aika from dying, Gilder uses a Sacres crystal on Aika, everyone else defends; Destra uses Tundra Blast and Sinistra uses Death Waltz, killing Fina and Gilder.
Aika uses Sacrum, Destra uses Tundra Blast, Sinistra attacks Vyse, Vyse uses the Riselm box on Fina (the box breaks. Also, this sentence is in order so you know that Fina is at full HP this turn).
Vyse guards, Aika uses Sacrum, Fina uses Riselm on Gilder; Sinistra uses Engage, Destra attack Aika, Aika counters.
Everyone guards; Sinistra uses Death Waltz, Destra uses Tundra Blast.
Vyse and Fina guard, Aika uses Sacrum, Gilder uses Gunslinger on Sinistra; both use Engage.
Knowing Fina will die anyway, I have her use Crystales against Sinistra while everyone else guards, but Destra uses Death Waltz first, killing her in one move (2000 damage); Sinistra uses Death Waltz, killing Aika.
Vyse uses Risan on Fina, Gilder uses a Sacres crystal on himself; Destra uses Tundra Blast, killing Vyse and Fina, Sinistra uses Explode.
Gilder, at 166 HP, uses a Risan crystal on Aika, but it misses; Sinistra and Destra use Engage.
Before Gilder can do anything, Death Waltz is used and Gilder dies.
Tell me, aside from not knowing what resistances I'd need ahead of time, what did I do wrong? Also, don't write that off as me being unlucky because that was the best I've ever done against them (I got Sinistra to be slack-jawed, which only happened one other time).